A) elimination of waste from tissues and cells B) transportation of nitrogen throughout the body C) elimination of carbon dioxide from tissues and cells D) transportation of food, water and oxygen to tissues and cells
A) toward B) around C) all over D) away from
A) toward B) away from C) all over D) around
A) artery B) capillary C) vein D) aorta
A) plasma B) platelets C) white blood cells D) red blood cells
A) platelets B) red blood cells C) white blood cells D) plasma
A) red blood cells B) platelets C) plasma D) white blood cells
A) aorta B) vena cava C) ventricle D) atria
A) ventricle B) aorta C) atria D) vena cava
A) liver B) brain C) heart D) lungs
A) protect against infection B) temperature regulation C) transport oxygen D) storage of fat and calcium
A) digestive system B) respiratory system C) skeletal system D) excretory system
A) valves B) plasma C) atria D) ventricles
A) 2 pumps B) 4 pumps C) 3 pumps D) 1 pump
A) oxygen and carbon dioxide B) oxygen and hydrogen C) nitrogen and oxygen D) hydrogen and carbon dioxide |